Execute run phase of Simulink model in parallel

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Osama Maqbool
Osama Maqbool 2016-9-30
编辑： Osama Maqbool 2016-10-6
I want to get the output using the function model(t,x,u,'outputs'). I have a large set of inputs, which I normally pass to the model in a for loop. I have already compiled the model before the loop using model([],[],[],'compile'). When I replaced the for with a parfor loop, it does not see the model as 'compiled'. I get the error: Error, 'model' must be compiled before it can be accessed programmatically.
I don't want to compile the model inside the loop as it would make it very slow and destroy the whole purpose of using parallelization. How can I solve this?

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回答（1 个）

Edric Ellis
Edric Ellis 2016-10-3
You can use parfevalOnAll to run the 'compile' and 'term' phases, like so:
parfevalOnAll(@vdp, 0, [], [], [], 'compile');
parfor t = 1:10
out{t} = vdp(t, [0; 0], [], 'outputs');
end
parfevalOnAll(@vdp, 0, [], [], [], 'term');
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Edric Ellis
Edric Ellis 2016-10-5
Strange. Did it fail the second time in a MATLAB session, or when you restarted MATLAB?
Osama Maqbool
Osama Maqbool 2016-10-6
In the same session. I can't seem to find a pattern on what gives the error. Many a times, I have made it work by deleting the contents of a folder generated automatically, called 'slprj', specifically the subfolder '_jitprj'.

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